JPS5472070A - Hologram signal reader - Google Patents

Hologram signal reader

Info

Publication number
JPS5472070A
JPS5472070A JP13959577A JP13959577A JPS5472070A JP S5472070 A JPS5472070 A JP S5472070A JP 13959577 A JP13959577 A JP 13959577A JP 13959577 A JP13959577 A JP 13959577A JP S5472070 A JPS5472070 A JP S5472070A
Authority
JP
Japan
Prior art keywords
output
channel
optical system
outputs
generates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13959577A
Other languages
Japanese (ja)
Inventor
Tadashi Hikita
Yoichi Morimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP13959577A priority Critical patent/JPS5472070A/en
Publication of JPS5472070A publication Critical patent/JPS5472070A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To simplify and miniaturize the apparatus optical system, by separating and reconstructing various information recorded in multiple channels of recording medium in the hologram type in a single channel reconstruction optical system.
CONSTITUTION: When inputting into an optical transducer 13a from both first channel and second channel 3, 4, an amplifier 18 generates an output C in the presence of phase pulses A and B. Therefore, an analog switch 19 generates an output D in the presence of phase pulse A and an output E in the presence of phase pulse B. As a result, these outputs become integrated outputs F, G, causing individual outputs H, I to appear at output ends 24, 25 of the first and second channels, respectively. Thus, in a single channel reconstruction optical system, information in each channel may be separated and reconstructed.
COPYRIGHT: (C)1979,JPO&Japio
JP13959577A 1977-11-18 1977-11-18 Hologram signal reader Pending JPS5472070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13959577A JPS5472070A (en) 1977-11-18 1977-11-18 Hologram signal reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13959577A JPS5472070A (en) 1977-11-18 1977-11-18 Hologram signal reader

Publications (1)

Publication Number Publication Date
JPS5472070A true JPS5472070A (en) 1979-06-09

Family

ID=15248917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13959577A Pending JPS5472070A (en) 1977-11-18 1977-11-18 Hologram signal reader

Country Status (1)

Country Link
JP (1) JPS5472070A (en)

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